Answer to Question #60092 in Physical Chemistry for joseph orobiyi

Question #60092

1 Which of these does not depict thermodynamics?
Performance of car engine
Rate of reaction
Melting of ice
Boiling water for coffee

2 Which of the followings is not a type of system?
Closed
Open
Intensive
Isolated

3 Which of the following statements describes an isolated system?
No exchange of matter and energy with the surrounding is possible
only exchange of matter with the surrounding is possible
only exchange of energy with the surrounding is possible
exchange of both matter and energy with the surrounding is possible

4 Which of the following statements is correct?
Temperature is an extensive property while heat is an intensive property
temperature is an intensive property while heat is an extensive property
both temperature and heat are intensive properties
both temperature and heat are extensive properties.

5 Which of these is not an extensive property of a system?
Density
Mass
Volume
Energy

Expert's answer

1. Rate of reaction shows just the kinetics of the process. The performance of car engine, melting of ice and boiling water depict the thermodynamics of the process. So, the answer is only the rate of reaction (2).
2. The systems can be classified as closed, open and isolated. Intensive is not a type of the system (3).
3. In isolated system no exchange of matter and energy with the surrounding is possible (1).
4. Temperature is an intensive property of the system while the heat is an extensive one (2).
5. Density is an intensive property of the system, while the mass, volume and and energy are extensive ones (1).